Home / 5,385.70-8,078.49-2,936.08

Finding the Fourth Proportional to 5,385.70, 8,078.49 and 2,936.08

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Solution

The fourth proportional to 5,385.70, 8,078.49 and 2,936.08 is: 4,404.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.70 : 8,078.49 = 2,936.08 : x
  2. Step 2: Convert to fraction form
    5,385.70/8,078.49 = 2,936.08/x
  3. Step 3: Cross multiply
    5,385.70x = 8,078.49 × 2,936.08
  4. Step 4: Simplify right side
    5,385.70x = 23,719,080.06
  5. Step 5: Solve for x
    x = 23,719,080.06/5,385.70
  6. Step 6: Final answer
    x = 4,404.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.